BASIC CONCEPTS OF COMPUTER
1.1 INTRODUCTION A computer is an electronic device that can perform variety of tasks according to given instructions. Computer components are divided into two major categories namely hardware and software. Hardware is the machine itself and its connected devices such as monitor, keyboard, mouse etc. Software are the set of programs that make use of hardware for performing various functions. 1.2 CHARACTERISTICS OF COMPUTERS The characteristics of computers that have made them so powerful and universally useful are speed, accuracy, diligence, versatility and storage capacity. Let us discuss them briefly. Speed Computers work at an incredible speed. A powerful computer is capable of performing about 3-4 million simple instructions per second. Accuracy In addition to being fast, computers are also accurate. Errors that may occur can almost always be attributed to human error (inaccurate data, poorly designed system or faulty instructions/programs written by the...